Question

Which is true?

The number 100 is reduced by 30%. The number X is the result of that calculation increased by 30%. The number Y is equal to 100. ​
Which statement is true?

Answer 1

Answer: Your equation will look like this, where “N” is the number and “R” is the intermediate result

N−(N∗30/100)=R

R+(R∗50/100)=525

Simplifying and solving for R, we get:

R+0.5R=525 ← reducing 50/100

1.5R=525 ← combining R terms

R=350 ← dividing both sides by 1.5

Now, we need to solve for N:

N−0.3N=350 ← reducing 30/100

0.7N=350 ← combining N terms

N=500 ← dividing both sides by 0.7

hope this helps you